Digicert - Encryption & Authentication
Uppy - The next open source file uploader for web browsers
Let's Encrypt - Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
Filestack - Simple file uploader and robust APIs for uploading, transforming, and delivering any file into your app. Filestack is a collection of tools and powerful APIs that make it simple to upload, transform, and deliver content.
SSL For Free - Free SSL Certificate issued in less than a minute.
Uppy.io - Next open source file uploader for web browsers